How to Install Xen on CentOS 7
Xen is an open-source virtualization software that allows you to run multiple operating systems on a single machine. This guide will walk you through the installation of Xen on CentOS 7.
Before we begin, make sure you have root access to your CentOS 7 server.
Step 1: Update CentOS 7
It’s always a good idea to update your system before installing any new software. Run the following commands to update CentOS 7:
yum -y update
Step 2: Install Xen
Now we can start installing Xen. Run the following command to install the necessary packages:
yum install xen
After the installation is complete, reboot your server to load the Xen kernel.
Step 3: Configure Xen
Next, we need to configure Xen to start automatically on boot. Edit the /etc/grub.conf file and add the following lines:
title Xen
kernel /xen.gz
module /vmlinuz- ro root=/dev/ rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us
module /initramfs-.img
Replace <your-kernel-version> and <your-initrd-version> with the actual kernel and initrd versions on your system.
Save the file and reboot your system for the changes to take effect.
Step 4: Verify Xen Installation
To verify that Xen has been installed correctly, run the following command:
xl list
You should see a list of domains running on your system, including the Domain-0 domain, which is the Xen management domain.
Step 5: Create a New Virtual Machine
Now that Xen is up and running, you can create new virtual machines. To create a new VM, use the following command:
xl create /path/to/config-file
Replace /path/to/config-file with the path to your VM configuration file.
That’s it! You’ve successfully installed Xen on CentOS 7 and created a new virtual machine. Happy virtualizing!